U-shaped steel supporting device

Abstract

The utility model provides a U-shaped steel supporting device, which relates to the technical field of U-shaped steel, and comprises U-shaped steel and two supporting legs, the upper end of each supporting leg is fixedly connected with two fourth connecting rods, a rectangular frame is fixedly arranged between the opposite sides of the four fourth connecting rods, and the rectangular frame is fixedly connected with the U-shaped steel. Second connecting rods and third connecting rods are rotatably embedded in the other ends of the four fourth connecting rods, sector gears are fixedly installed at one ends of the four third connecting rods, first connecting rods are rotatably arranged on the outer surfaces of the other ends of the four second connecting rods in a sleeving mode, and clamping devices are fixedly installed at the other ends of the four first connecting rods; the other ends of the four third connecting rods are rotationally arranged in the positions, close to the centers, of the first connecting rods in a sleeving mode, when dismounting is needed, a supporting block can be made to move upwards only by filling air into an air cylinder through a one-way valve, so that a clamping device moves towards the two sides, the clamping effect of the U-shaped steel is canceled, and the U-shaped steel can be rapidly dismounted.

Description

Technical Field

[0001] The utility model relates to the technical field of U-shaped steel, in particular to a U-shaped steel erection device. Background Art

[0002] U-shaped steel is a kind of steel with a cross-section like the English letter "U", and sometimes the cross-section is in the shape of the Japanese letter "ひ". It is mainly used for mine roadways, secondary support of mine roadways, and support for mountain tunnels, etc.

[0003] After retrieval, Chinese Patent No. CN215445907U discloses a high-strength bent U-shaped steel support structure, which includes a workbench. A U-shaped steel bracket is arranged on the top surface of the workbench. Fixed sleeves are respectively sleeved on both sides of the U-shaped steel bracket. A fixing device is arranged between the two fixed sleeves. The two ends of the fixing device are respectively rotatably connected with the corresponding fixed sleeves through first shaft rods. A support device is arranged below the fixing device. Rollers are respectively arranged at both ends of the U-shaped steel bracket, and the rollers are slidably embedded in the chute on the top surface of the workbench. The structure of the utility model is simple and convenient to use, and enhances the bearing capacity of the U-shaped steel.

[0004] The above device improves the bearing capacity of the U-shaped steel through the support device and the rollers arranged at both ends of the bracket, and at the same time improves the tensile capacity of the U-shaped steel through the spring inside the bracket. However, the above device has multiple problems. First, in actual use, the tunnel wall is not flat, and the upper side of the U-shaped steel cannot be fully attached to the tunnel wall, resulting in uneven stress on the U-shaped steel and easy damage to the U-shaped steel. At the same time, when the U-shaped steel is damaged, the above device cannot be disassembled conveniently and quickly, increasing the safety risk of the operators during construction. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a U-shaped steel erection device, which can solve the problems that in actual use, the tunnel wall is not flat, the upper side of the U-shaped steel cannot be fully attached to the tunnel wall, resulting in uneven stress on the U-shaped steel and easy damage to the U-shaped steel. At the same time, when the U-shaped steel is damaged, the above device cannot be disassembled conveniently and quickly, increasing the safety risk of the operators during construction.

[0006] To achieve the above object, the utility model adopts the following technical solution: a U-shaped steel support device, comprising: a U-shaped steel and two support legs. At the upper ends of the two support legs, two fourth connecting rods are fixedly connected respectively. Between the opposite sides of the four fourth connecting rods, a rectangular frame is fixedly installed. Inside the other ends of the four fourth connecting rods, a second connecting rod and a third connecting rod are rotatably embedded respectively. At one ends of the four third connecting rods, sector gears are fixedly installed respectively. On the outer surfaces of the other ends of the four second connecting rods, first connecting rods are rotatably sleeved respectively. At the other ends of the four first connecting rods, grippers are fixedly installed respectively. At the other ends of the four third connecting rods, they are rotatably sleeved inside the first connecting rods near the center.

[0007] As a preferred embodiment, cylinders are fixedly installed at the upper ends of the two support legs. Inside the two cylinders, extrusion plates are movably sleeved respectively. At the upper ends of the outer surfaces of the two extrusion plates, pressure rods are fixedly connected respectively.

[0008] The technical effect of adopting the above further solution is: when the extrusion plate moves in the sealed cylinder, when the U-shaped steel presses down the pressure rod, it can play a buffering role for the U-shaped steel.

[0009] As a preferred embodiment, support blocks are fixedly installed at the upper ends of the outer surfaces of the two pressure rods. Tooth grooves are arranged on both sides of the outer surfaces of the two support blocks, and a rubber pad is arranged at the upper end of the outer surface of the support block.

[0010] The technical effect of adopting the above further solution is: the rubber pad installed on the upper side of the support block can reduce the friction between the U-shaped steel and the support block, thereby reducing the wear of the device. The tooth grooves arranged on both sides of the support block are meshed with the sector gears, so that the sector gears can be driven to rotate under the up and down movement of the support block, and the movement of the gripper is further controlled through the link structure.

[0011] As a preferred embodiment, connecting pipes are fixedly installed on one side of the two cylinders. At the other ends of the two connecting pipes, one-way valves are fixedly connected respectively.

[0012] The technical effect of adopting the above further solution is: the connecting pipes are connected to the inside of the cylinders. When it is necessary to disassemble the U-shaped steel, gas can be filled into the cylinders through the connecting pipes. The expansion of the gas in the cylinders will squeeze the extrusion plates to move upward, thereby driving the support blocks to move upward, so that the grippers rotate to both sides, facilitating the removal and replacement of the U-shaped steel.

[0013] As a preferred embodiment, support plates are fixedly arranged at the lower ends of the outer surfaces of the four support legs. Fixing holes are opened at the corners close to the four support plates.

[0014] The technical effect of adopting the above further solution is that the support plate can increase the contact area between the device and the ground, thereby improving the overall stability of the device. At the same time, the fixing holes can further improve the stability of the support plate.

[0015] As a preferred embodiment, an arc-shaped plate is fixedly installed on the upper side of the outer surface of the U-shaped steel.

[0016] The technical effect of adopting the above further solution is that the arc-shaped plate can increase the contact area between the U-shaped steel and the tunnel wall, thereby improving the stability of the U-shaped steel during use.

[0017] As a preferred embodiment, a fitting bag is fixedly arranged on the upper side of the outer surface of the arc-shaped plate.

[0018] The technical effect of adopting the above further solution is that by filling fine sand into the fitting bag on the outer side of the arc-shaped plate, even when the tunnel wall is uneven, it can be fully fitted with the tunnel wall, so that the U-shaped steel is stressed more evenly, thereby increasing the service life of the U-shaped steel.

[0019] As a preferred embodiment, a plurality of brackets are fixedly installed on both sides of the outer surface of the U-shaped steel, and the other ends of the plurality of brackets are all connected to the lower side of the outer surface of the arc-shaped plate.

[0020] The technical effect of adopting the above further solution is that the brackets connect the arc-shaped plate and the U-shaped steel. Through the connection of multiple groups of brackets, the stability of the arc-shaped plate is further improved, and its supporting effect is more excellent.

[0021] Compared with the prior art, the advantages and positive effects of the present utility model are as follows.

[0022] 1. In the present utility model, first, by separately installing the U-shaped steel and the support legs, the effect of easy replacement of the U-shaped steel is improved. During actual use, due to the pressure from the U-shaped steel, the support block moves downward. While the U-shaped steel moves, it drives the meshing sector gear to rotate, thereby driving the link structure to control the gripper to move inward, so as to achieve the clamping effect on the U-shaped steel, making it not easy to fall. When disassembly is required, only by filling gas into the cylinder through the one-way valve can the support block move upward, so that the gripper moves to both sides, so that the clamping effect on the U-shaped steel is cancelled, and the U-shaped steel can be disassembled quickly.

[0023] 2. In the present utility model, during actual use, since a fitting bag is arranged on the upper side of the arc-shaped plate and the fitting bag can be filled with fine sand, when encountering the situation of uneven tunnel wall, fine sand can be filled into the fitting bag according to the actual situation to make it fully fit with the tunnel wall, so that the arc-shaped plate is stressed evenly, and the U-shaped steel is not easily deformed. Brief Description of the Drawings

[0024] Figure 1 The front view structural schematic diagram of a U-shaped steel support device provided by the present utility model;

[0025] Figure 2 A U-shaped steel support device provided by the present utility model Figure 1 The structural schematic diagram at position A in it;

[0026] Figure 3 A U-shaped steel support device provided by the present utility model Figure 1 The structural schematic diagram at position B in it;

[0027] Figure 4 The structural schematic diagram of the cylinder part of a U-shaped steel support device provided by the present utility model.

[0028] Legend description:

[0029] 1. U-shaped steel; 2. Bracket; 3. Arc plate; 4. Fitting bag; 5. Clamp; 6. First connecting rod; 7. Second connecting rod; 8. Third connecting rod; 9. Sector gear; 10. Support block; 11. Tooth groove; 12. Fourth connecting rod; 13. Rectangular frame; 14. Pressing rod; 15. Extrusion plate; 16. Cylinder block; 17. Connecting pipe; 18. Check valve; 19. Support leg; 20. Rubber pad; 21. Support plate; 22. Fixed hole. Specific implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Please refer to Figures 1-4 , the present utility model provides a technical solution: a U-shaped steel support device, including: a U-shaped steel 1 and two support legs 19. Both upper ends of the two support legs 19 are fixedly connected with two fourth connecting rods 12. A rectangular frame 13 is fixedly installed between the opposite sides of the four fourth connecting rods 12. The other ends of the four fourth connecting rods 12 are internally rotatably embedded with a second connecting rod 7 and a third connecting rod 8. One ends of the four third connecting rods 8 are fixedly installed with sector gears 9. The outer surfaces of the other ends of the four second connecting rods 7 are rotatably sleeved with a first connecting rod 6. The other ends of the four first connecting rods 6 are fixedly installed with clamps 5. The other ends of the four third connecting rods 8 are rotatably sleeved inside the first connecting rod 6 near the center.

[0032] Such as Figures 1-4As shown in the figure, cylinders 16 are fixedly installed at the upper ends of both support legs 19. Extrusion plates 15 are movably sleeved inside both cylinders 16. Pressure rods 14 are fixedly connected to the upper ends of the outer surfaces of both extrusion plates 15. By moving inside the sealed cylinder 16, when the U-shaped steel 1 presses down on the pressure rod 14, it can play a buffering role for the U-shaped steel 1.

[0033] As Figures 1-4 shown in the figure, support blocks 10 are fixedly installed at the upper ends of the outer surfaces of both pressure rods 14. Tooth grooves 11 are provided on both sides of the outer surfaces of both support blocks 10. A rubber pad 20 is provided at the upper end of the outer surface of the support block 10. The rubber pad 20 installed on the upper side of the support block 10 can reduce the friction between the U-shaped steel 1 and the support block 10, thereby reducing the wear of the device. The tooth grooves 11 provided on both sides of the support block 10 are engaged with the sector gear 9. Thus, the sector gear 9 can be driven to rotate under the up and down movement of the support block 10, and the movement of the gripper 5 can be further controlled through the connecting rod structure.

[0034] As Figures 1-4 shown in the figure, connecting pipes 17 are fixedly installed on one side of both cylinders 16. Check valves 18 are fixedly connected to the other ends of both connecting pipes 17. The connecting pipes 17 are connected to the inside of the cylinders 16. When it is necessary to disassemble the U-shaped steel 1, gas can be filled into the cylinders 16 through the connecting pipes 17. The expansion of the gas in the cylinders 16 will cause the extrusion plates 15 to move upward, thereby driving the support blocks 10 to move upward, so that the gripper 5 rotates to both sides, facilitating the removal and replacement of the U-shaped steel 1.

[0035] As Figures 1-4 shown in the figure, support plates 21 are fixedly provided at the lower ends of the outer surfaces of all four support legs 19. Fixing holes 22 are provided near the corners of all four support plates 21. The support plates 21 can increase the contact area between the device and the ground, thereby improving the overall stability of the device. The fixing holes 22 can further improve the stability of the support plates 21.

[0036] As Figures 1-4 shown in the figure, an arc plate 3 is fixedly installed on the upper side of the outer surface of the U-shaped steel 1. The arc plate 3 can increase the contact area between the U-shaped steel 1 and the tunnel wall, thereby improving the stability of the U-shaped steel 1 during use.

[0037] As Figures 1-4 shown in the figure, a fitting bag 4 is fixedly provided on the upper side of the outer surface of the arc plate 3. By filling fine sand into the fitting bag 4 on the outer side of the arc plate 3, even when the tunnel wall is uneven, it can be fully fitted with the tunnel wall, so that the U-shaped steel 1 is more evenly stressed, thereby increasing the service life of the U-shaped steel 1.

[0038] As Figures 1-4As shown in the figure, a plurality of brackets 2 are fixedly installed on both sides of the outer surface of the U-shaped steel 1, and the other ends of the plurality of brackets 2 are connected to the lower side of the outer surface of the arc-shaped plate 3. The brackets 2 connect the arc-shaped plate 3 and the U-shaped steel 1. Through the connection of multiple groups of brackets 2, the stability of the arc-shaped plate 3 is further improved, and its supporting effect is more excellent.

[0039] Working principle: During installation, first, an appropriate amount of fine sand needs to be filled into the fitting bag 4 on the outer side of the arc-shaped plate 3 fixed by the brackets 2 to make it fully fit with the tunnel wall, so that the U-shaped steel 1 is evenly stressed. At the same time, the support plate 21 is fixed on the ground through the fixing holes 22 on the support plate 21. When the U-shaped steel 1 is damaged and needs to be replaced, first, air is filled into the connecting pipe 17 with a one-way valve 18. When the air enters the cylinder 16 at the upper end of the support leg 19, the gas expands to move the extrusion plate 15 upward, driving the pressure rod 14 to move upward, driving the support block 10 fixed on it to move upward in the rectangular frame 13. At this time, the tooth groove 11 causes the sector gear 9 to rotate counterclockwise, driving the third connecting rod 8 to rotate counterclockwise on the fourth connecting rod 12. The first connecting rod 6 moves outward under the action, and the second connecting rod 7 rotates counterclockwise under the movement of the first connecting rod 6. The first connecting rod 6 controls the gripper 5 fixed at one end to move to both sides, so that the fixation of the U-shaped steel 1 is released, and the U-shaped steel 1 can be easily removed from the rubber pad 20, facilitating replacement.

[0040] The above is only a preferred embodiment of the present invention, and it does not limit the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change, and modification made to the above embodiments based on the technical essence of the present invention still fall within the protection scope of the technical solution of the present invention.

Claims

1. A U-shaped steel support device, comprising: U-shaped steel (1) and two support legs (19), characterized in that two fourth connecting rods (12) are fixedly connected to the upper ends of the two support legs (19), a rectangular frame (13) is fixedly installed between the opposite sides of the four fourth connecting rods (12), a second connecting rod (7) and a third connecting rod (8) are rotatably embedded in the inner parts of the other ends of the four fourth connecting rods (12), a sector gear (9) is fixedly installed at one end of each of the four third connecting rods (8), a first connecting rod (6) is rotatably sleeved on the outer surfaces of the other ends of the four second connecting rods (7), a gripper (5) is fixedly installed at the other end of each of the four first connecting rods (6), and the other ends of the four third connecting rods (8) are rotatably sleeved in the inner parts of the first connecting rods (6) near the center.

2. The U-shaped steel support device according to claim 1, characterized in that: Two cylinders (16) are fixedly installed at the upper ends of the two support legs (19), an extrusion plate (15) is movably sleeved in each of the two cylinders (16), and a pressure rod (14) is fixedly connected to the upper end of the outer surface of each of the two extrusion plates (15).

3. The U-shaped steel support device according to claim 2, characterized in that: A support block (10) is fixedly installed at the upper end of the outer surface of each of the two pressure rods (14), tooth grooves (11) are arranged on both sides of the outer surface of the support block (10), and a rubber pad (20) is arranged at the upper end of the outer surface of the support block (10).

4. The U-shaped steel support device according to claim 2, wherein: A connecting pipe (17) is fixedly installed on one side of each of the two cylinders (16), and a one-way valve (18) is fixedly connected to the other end of each of the two connecting pipes (17).

5. The U-shaped steel support device according to claim 1, characterized in that: Support plates (21) are fixedly arranged at the lower ends of the outer surfaces of the four support legs (19), and fixing holes (22) are formed at the corners of the four support plates (21).

6. The U-shaped steel support device according to claim 5, characterized in that: An arc-shaped plate (3) is fixedly installed on the upper side of the outer surface of the U-shaped steel (1).

7. The U-shaped steel support device according to claim 6, characterized in that: A fitting bag (4) is fixedly arranged on the upper side of the outer surface of the arc-shaped plate (3).

8. The U-shaped steel support device according to claim 1, wherein: A plurality of brackets (2) are fixedly installed on both sides of the outer surface of the U-shaped steel (1), and the other ends of the plurality of brackets (2) are connected to the lower side of the outer surface of the arc-shaped plate (3).

Images